MS-LS1-7 Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.
Clarification Statement: Emphasis is on describing that molecules are broken apart and put back together and that in this process, energy is released.
Assessment Boundary: Assessment does not include details of the chemical reactions for photosynthesis or respiration.
This resource appears to be designed to build towards this performance expectation, though the resource developer has not explicitly stated so.
Comments about Including the Performance Expectation
In order to meet the full performance expectation, students need to be given an opportunity to develop a model of the chemical reaction as photosynthesis occurs. This model could be in a hands-on model made of gumdrops and toothpicks, allowing the disassembly and reassembly of the various atoms or the model could be a drawing that would be frames of a comic strip showing the steps as photosynthesis makes sugar and, subsequently, cellular respiration breaks the sugar down.